Research And Development Of Support Technology About CINRAD/CC Radar

CINRAD/CC radar is the Chinese Meteorological bureau uses in the national network stationing the main weather radar, is also our province Meteorological department uses for in the analysis the small criterion weather system, admonishes the strong convection dangerous weather, the manufacture short-time weather forecast powerful tool. Threw in the massive manpower, the physical resource and the financial resource in the weather radar construction aspect country, after the radar completes, how to guarantee that its highly effective steady operation is a subject matter which the weather information technical support department will face from now on.The radar movement safeguard is a weather information technical support department's important office work, CINRAD/CC the weather radar is the Meteorological department emerging technical equip, this article embarks from the actual office work, key conducted the analytical study to the radar movement safeguard technology's radar test technology and the radar long-distance monitoring technology, the radar test technology belonged to a radar maintenance technology part, through to the index of reflection factor and the speed equation's inferential reasoning, obtained the radar convention test is mainly to affects the radar reflectivity factor survey precision the factor test, and has conducted the research to various factors measuring error; The radar coherence test is to the radar measured that the fast performance the examination, uses the phase angle law is the present quota examination radar coherence best method; Have manufactured "Radar system Test Storehouse" take the radar test theory and the concrete test method as the primary coverage development; Through local monitors the hardware system and the upward monitoring document content and the structure research to the radar system, has formed the radar long-distance real-time monitoring by the remote control and the condition monitor development mentality primarily, unified VC++ and ASP+SQLSERVER and so on vanguard technology development has developed "CINRAD/CC Weather radar Long-distance Failure diagnosis Supervisory system".The radar test engineering research is in the radar principle foundation further deep research, "Radar system Test Storehouse" has contained the concrete test principle and the test method, the actual picture, can deepen using the test storehouse to the radar technology understanding, enhances to the radar performance fast examination ability and radar fault elimination ability. "CINRAD/CC Weather radar Long-distance Failure diagnosis Supervisory system" compared with other radar monitoring system, increased the long-range radar control function, chose the radar main parameter and the breakdown information demonstrated that filtered has had nothing to do with the information with the radar condition performance, the more convenient radar technology support personnels browsing and the use, were a radar movement safeguard service advantageous tool.The CINRAD/CC weather radar besides of has the convention weather radar to be able to survey the precipitation sighting vane space position and the echo strength function, because the radar has the coherence, but can also survey radial velocity and the speed between the precipitation sighting vane and radar's average change is the spectral width. Therefore, we divide into the CINRAD/CC weather radar test to the radar sounding precipitation sighting vane space position and the echo strength function testing and to the radar sounding precipitation sighting vane radial velocity test, the former is called the conventional test, the latter is called the coherence test. The CINRAD/CC weather radar test goal is mainly examines radar's complete machine system and various subsystems' technical specification and each performance whether to satisfy the radar sounding function the specification, whether to conform to the radar production design standard.May obtain according to the radar meteorology equation inferential reasoning, the radar convention test is mainly to affects the radar reflectivity factor survey precision the factor survey, like the radar emissive power, the pulse width, the operating frequency, the receiving power and so on, guaranteed it in stipulates in the error range, if the measuring error is bigger than the stipulation error throughout, needs to carry on the essential inspection and the adjustment to the radar, makes the radar to restore to the normal state, chirp the examination law may determine the nature of the examination radar system coherence, around the terrain feature filter contrasts may also confirm the radar system whether to have the coherence.The CINRAD/CC weather radar in the system design, establishes own monitoring subsystem, has applied the advanced BIT technology, has used the dispersion sampling, the monitor, the common control principle in the BIT design, namely the launch subsystem, the receive subsystem, the servo subsystem, the fiber optic communications subsystem (light end machine) has respective BITE (within the aircraft to self-check equipment), they gather the duty system's state variable and the breakdown information separately and escort to the monitoring subsystem, by monitors in subsystem's PC104 microcomputer processing to complete the examination and the breakdown interconnection protection again. Simultaneously uses the automatic identification signal, completes docking to batter the system performance, the signal processing subsystem function automatic inspection. The monitoring subsystem the state variable which and the breakdown information transmitted light end machine transmission local terminal processing microcomputer gathers various subsystems. Automatic the monitoring information will manufacture the monitoring document on the local terminal processing microcomputer to deliver the provincial level weather information center concurrently.The CINRAD/CC weather radar long-distance supervisory system is mainly composed of the long-distance monitor radar status messages and the long-distance work management radar two parts, the long-range radar status messages may gain through the software to the radar monitoring information file explanation, the long-range radar control may operate the terminal through the control local radar the means to realize. "CINRAD/CC Weather radar Long-distance Failure diagnosis Supervisory system" in the function including the remote control, the condition monitor, the breakdown retrieval, the breakdown input, the spare parts examination and so on several parts, in the development design has used VC++6.0 and the ASP+SQLSERVER vanguard technology, had the real-time monitoring radar in the practical application, served the effect which on own initiative Radar stood.